Question

Desenvouva a espresao (z+4) (z-4)

Answer 1

Podemos resolver utilizando,

o quadrado do primeiro termo menos o quadrado do segundo termo.

$\boxed{\begin{array}{lr}\sf (z+4)(z-4) \end{array}}\\\boxed{\begin{array}{lr}\sf z^2-4^2 \end{array}}\\\boxed{\begin{array}{lr}\sf z^2-16\ \ \checkmark \end{array}}$

$|\underline{\overline{\mathcal{\boldsymbol{\LaTeX}}}}|$